Roads with double solid yellow line markings down the center indicate that passing is:
- Allowed from both directions.
- Allowed only from your direction of travel.
- Not allowed from either direction. ✓
Answer: C. Not allowed from either direction.
Double solid yellow lines down the center mean passing is not allowed from either direction.
Why this is the answer
The manual explains that yellow lines separate traffic moving in opposite directions, and that a solid line on your side means you cannot pass or cross it except to turn into a driveway. Where both center lines are solid, each driver faces a solid line, so neither direction gets permission to pass. That is why the double solid marking works as a no-passing zone for traffic on both sides of the road, and why the only crossing the manual allows there is a left turn into a driveway.
Why the other answers are wrong
- A. Allowed from both directions. — Passing from both directions is what a broken line on each side would suggest, but solid lines on both sides deny passing to drivers traveling either way.
- B. Allowed only from your direction of travel. — Passing from just one direction fits the solid-line-with-broken-line marking, where only the driver on the broken side may pass, not a double solid.
Remember it
Think of a solid yellow line as a wall on your side: two solid yellows means a wall for you and a wall for oncoming traffic.